Domain · Areas of Expertise

Ergonomics

Human factors, posture, and workload assessment - turning physical and cognitive strain into measurable, fixable risk.

This is where my research concentration sits most heavily: ergonomic variable modelling, workplace risk prioritization, and productivity-linked ergonomic assessment across IT, automobile, and manufacturing settings. Below are working tools built on standard IE ergonomics techniques, plus write-ups of published/presented studies.

Hands-on Tools

Try the assessments

Simplified, educational implementations of standard ergonomics techniques - useful for quick screening and teaching; not a substitute for a full certified assessment.

🔴 Live RULA/REBA screening

RULA / REBA Posture Risk Screener

Posture Assessment

Simplified additive scoring inspired by RULA (Rapid Upper Limb Assessment) and REBA (Rapid Entire Body Assessment) worksheets. Switch mode to screen upper-limb-only tasks (desk work, assembly) or whole-body tasks (lifting, material handling).

Upper Arm Position Lower Arm Position Wrist Position Neck Position Trunk Position Muscle Use Force / Load

Select values and score.

Trunk Position Neck Position Leg Support Upper Arm Position Lower Arm Position Wrist Position Load / Force Coupling (Grip) Activity

Select values and score.

Educational simplified scoring, not the official RULA/REBA lookup tables - use the full worksheets for certified workplace assessments.

⚡ RWL + Lifting Index, live

NIOSH Lifting Equation

Manual Material Handling

Computes the Recommended Weight Limit (RWL) and Lifting Index (LI) for a manual lifting task using the 1994 NIOSH revised lifting equation.

Load Weight, L (kg) Horizontal Distance, H (cm) Vertical Location at Origin, V (cm) Vertical Travel Distance, D (cm) Asymmetry Angle, A (°) Lift Frequency, F (lifts/min) Duration Coupling Quality

Enter task parameters and calculate.

📐 Workstation fit check

Anthropometric Workstation Sizing

Workstation Design

Percentage-of-stature method for quick workstation dimension guidance based on worker height and task type.

Worker Stature (cm) Work Posture Task Type

Enter stature and calculate.

Case Studies

Published & Presented Work

Conference · 2019

Modelling & Analysis of Ergonomic Variables in the IT Industry

ICBAI International Conference, IISc Bangalore

Used Interpretive Structural Modelling (ISM) and Structural Equation Modelling (SEM) to map how ergonomic variables in IT workplaces relate to and influence one another, identifying which factors act as root drivers versus downstream symptoms.

Methods: ISM, SEM

Conference · 2022

Quantifying & Prioritizing Ergonomic Measures in an Automobile Industry

ICAIEA International Conference, DoIE, CEG, Anna University

Applied Analytic Network Process (ANP) and DEMATEL to rank candidate ergonomic interventions on an automobile shop floor by impact and interdependency, giving plant management a prioritized action list rather than a flat checklist.

Methods: ANP, DEMATEL

Journal · Communicated

Ergonomic Effect on Manufacturing Industries’ Productivity - A Review

R. Saranraj and Dr. T. Ramesh Babu

A literature review consolidating how ergonomic risk factors - posture, workload, environment - translate into measurable productivity loss in manufacturing settings, framing ergonomics as a productivity lever rather than only a compliance concern.

Focus: Ergonomics–productivity linkage